Make --oneshot the default mode and disable watch mode.

Due to multiple bugs in dovecot 2.13 and 2.18's implementation of the
NOTIFY extension [RFC5465]:

    http://dovecot.org/pipermail/dovecot/2015-July/101473.html
    http://dovecot.org/pipermail/dovecot/2015-July/101474.html
    http://dovecot.org/pipermail/dovecot/2015-July/101514.html

2 files changed, 6 insertions, 22 deletions

diff --git a/imapsync b/imapsync
index b9d2d31..339979c 100755
--- a/imapsync
+++ b/imapsync
@@ -47,7 +47,6 @@ sub usage(;$) {
         print STDERR "Synchronize the given MAILBOXes between two QRESYNC-capable IMAP4rev1 servers.\n"
             ."Options:\n"
             ."    --config=FILE    Specify an alternate configuration file\n"
-            ."    -1, --oneshot    Exit as soon as all mailboxes are synchronized\n"
             ."    --repair         List the database anomalies and try to repair them\n"
             ."    -q, --quiet      Try to be quiet\n"
             ."    --debug          Turn on debug mode\n"
@@ -55,7 +54,7 @@ sub usage(;$) {
     }
     exit $rv;
 }
-usage(1) unless GetOptions(\%CONFIG, qw/config=s quiet|q oneshot|1 repair debug help|h/);
+usage(1) unless GetOptions(\%CONFIG, qw/config=s quiet|q repair debug help|h/);
 usage(0) if $CONFIG{help};
 
 
@@ -224,7 +223,9 @@ foreach my $name (qw/local remote/) {
     #my $mailboxes = $client->list((uc $config{'subscribed-only'} eq 'TRUE' ? '(SUBSCRIBED)' : '' )
     #                             .$config{mailboxes}, 'SUBSCRIBED');
     # $client->notify('SELECTED', 'MAILBOXES ('.join(' ', keys %$mailboxes).')');
-    $client->notify(qw/SELECTED SUBSCRIBED/) unless $CONFIG{oneshot};
+    # XXX NOTIFY doesn't work as expected for INBOX
+    #     http://dovecot.org/pipermail/dovecot/2015-July/101514.html
+    #$client->notify(qw/SELECTED SUBSCRIBED/) if $CONFIG{watch};
     # XXX We shouldn't need to ask for STATUS responses here, and use
     #     NOTIFY's STATUS indicator instead.  However Dovecot violates RFC
     #     5464: http://dovecot.org/pipermail/dovecot/2015-July/101474.html
@@ -1151,7 +1152,7 @@ while(1) {
         }
     }
     # clean state!
-    exit 0 if $CONFIG{oneshot};
+    exit 0 unless $CONFIG{watch};
     wait_notifications(900);
 }
 
diff --git a/imapsync.1 b/imapsync.1
index f4f6965..8c22222 100644
--- a/imapsync.1
+++ b/imapsync.1
@@ -10,8 +10,7 @@ imapsync \- IMAP-to-IMAP synchronization program for QRESYNC-capable servers
 .SH DESCRIPTION
 .PP
 .B imapsync\fR performs stateful synchronization between two IMAP4rev1
-servers, then (unless the flag \fB\-\-oneshot\fR is set) keeps both
-connection open and wait for new changes to arrive.
+servers.
 Such synchronization is made possible by the QRESYNC extension from
 [RFC7162]; for convenience reasons support for LIST\-EXTENDED [RFC5258],
 LIST\-STATUS [RFC5819] and UIDPLUS [RFC4315] is also required.
@@ -77,15 +76,6 @@ providing extra arguments limits the synchronization to the given
 \fIMAILBOX\fRes only.
 
 .PP
-In its default mode (unless the flag \fB\-\-oneshot\fR or
-\fB\-\-repair\fR is set), \fBimapsync\fR does not exit once all
-mailboxes have been synchronized.  Instead, it keeps both connection
-open and uses the NOTIFY command from [RFC5465] to be notified of new
-changes (on any mailbox) as soon as they arrive.  If no update is sent
-in 15 minutes, a NOOP command is issued in order not to trigger the
-servers' inactivity timeout and be logged out.
-
-.PP
 If the synchronization was interrupted during a previous run while some
 messages were being replicated (but before the UIDNEXT or HIGHESTMODSEQ
 values have been updated), \fBimapsync\fR performs a \(lqfull
@@ -104,13 +94,6 @@ Specify an alternate configuration file.  Relative paths start from
 environment variable is unset.
 
 .TP
-.B \-1\fR, \fB\-\-oneshot\fR
-Exit as soon as all mailboxes are synchronized, instead of passively
-waiting for updates from the open connections.
-Using \fB\-\-oneshot\fR removes the requirement that IMAP servers must
-advertise support the NOTIFY extension [RFC5465].
-
-.TP
 .B \-\-repair
 List the database anomalies and try to repair them.
 This is done by performing a so\-called \(lqfull synchronization\(rq,